Question about 1992 Isuzu Trooper

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How do you read the DTC´s from my Isuzu Bighorn 1992

The Check engine light comes on. How do you read out the DTC´s that are store in the PCM (Computer)

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A bighorn??should have an OBDII connection interface,then with the right software its not a problem.But by the time you pay for all that its cheaper to take it to garage

Posted on Feb 04, 2009

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Posted on Jan 02, 2017

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2002 LeSabre, has check charging system light on, battery tested good, replaced alternator, everything checked out ok. drove down the street and light comes on again and car dies, what next?


Check heavy gage wire on the back of the alternator for B+ voltage ?
When the engine is running, the generator turn on signal is sent to the generator from the PCM, turning on the regulator. PCM - engine computer . Take the vehicle to a qualified repair shop an have it checked for DTC'S
DTC B1327
DTC B1513
DTC B1514
DTC P0560
DTC P0620

The PCM monitors the system voltage to make sure that the voltage stays within the proper range. Damage to components, and incorrect data input can occur when the voltage is out of range. The PCM monitors the system voltage over an extended length of time. If the PCM detects a system voltage outside an expected range for the calibrated length of time, DTC P0560 will set.
Action Taken When the DTC Sets
• The PCM will not illuminate the Malfunction Indicator Lamp (MIL).

Jan 15, 2018 | Cars & Trucks

1 Answer

Temperature needle does not move for awhile and when it does the check engine light comes on but the temperature needle does not read hot and moter does not get hot


When a 'check engine light' (MIL=Malfunction Indicator Lamp) is turned on, there is a DTC (Diagnostic Trouble Code) set/stored in the ECM/PCM (Engine Control Module/Powertrain Control Module). This code identifies which engine management system component/function experienced a malfunction. Once you pull/read this code, you may begin diagnosis.

Sep 14, 2011 | Hyundai Excel Cars & Trucks

1 Answer

No reverse slow in drive


Is the "Check Engine" light on? When a 'check engine light' (MIL=Malfunction Indicator Lamp) is turned on, there is a DTC (Diagnostic Trouble Code) set/stored in the ECM/PCM (Engine Control Module/Powertrain Control Module). This code identifies which engine management system component/function experienced a malfunction. Once you pull/read this code, you may begin diagnosis.

Sep 06, 2011 | 2003 Hyundai Accent

1 Answer

When i slow down approaching lights, it stalls and the engine check light is coming on! I do have an oil leak which I'm not sure where it is coming from and the oil is very low at the moment.


When a 'check engine light' (MIL=Malfunction Indicator Lamp) is turned on, there is a DTC (Diagnostic Trouble Code) set/stored in the ECM/PCM (Engine Control Module/Powertrain Control Module). This code identifies which engine management system component/function experienced a malfunction. Once you pull/read this code, you may begin diagnosis.

Sep 04, 2011 | Hyundai Excel Cars & Trucks

1 Answer

2000 Hyundai Elantra: When shifting from first to second gear, check engine light will flash, and vehicle will attempt to stall, if clutch pedel is is not depressed quickly, service tech did experience...


When a 'check engine light' (MIL=Malfunction Indicator Lamp) is turned on, there is a DTC (Diagnostic Trouble Code) set/stored in the ECM/PCM (Engine Control Module/Powertrain Control Module). This code identifies which engine management system component/function experienced a malfunction. Once you pull/read this code, you may begin diagnosis.

Since the 'Check Engine' light flashed, and there were no codes stored (at least this is what the technician told you), there is definitely something happening with the engine computer. There is ALWAYS a code stored when the Check Engine light comes on - even if it's a 'History' code (unless there's a problem with the computer).

Have a qualified/certified Hyundai Service Technician properly diagnose this issue.

Aug 31, 2011 | 2000 Hyundai Elantra

1 Answer

Engine light stays on 2008 impala after cleared takes 40 miles to come back on gas cap tried engine runs fine recently had oil change


The engine light is on due to a fault code that is recognized by the PCM. Bring your vehicle to a well supplied auto store; Autozone and the like, and ask them to read the DTC (diagnostic trouble code) that is stored in the PCM memory. They will perform this easy procedure free of charge.

Apr 16, 2011 | 2008 Chevrolet Impala

1 Answer

I have a 2001 pontiac sunfire the check engine light is on. when someone tried to reset it this code came up P1621 what does that mean?


A vehicle control module (VCM) or powertrain control modules' (PCM) electronically erasable programmable read only memory (EEPROM) contains data essential to running the engine and transmission. The VCM/PCM stores critical preprogrammed data within the EEPROM, this data remains even if the vehicles' battery is disconnected. At power up the VCM/PCM checks the integrity of this data. If the checksum of the EEPROM does not match a predetermined value, DTC P1621 will set. The DTC will also set if the VCM/PCM is unable to correctly read or finds corrupt data from the EEPROM. GM recommends testing/replacement of the VCM/PCM using required equipment by a qualified technician for this type of VCM/PCM memory performance fault condition.

Jun 05, 2010 | 2001 Pontiac Sunfire

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